{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "625171320",
    "entityType": "User",
    "nonce": "0xb6284900e814c74c50853052b536bd97784ea5abcbdc8e521e31932657c34b6c",
    "signature": "0xb59364c97bcfda63150601183cd8a380b1893160193bf3a06ca85df12b046b2c059d6d6f4e419823b37f40bfc44dc4cedfed65c1bc2a2ce0d8786511b21f8a111c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}