{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13701",
    "entityType": "User",
    "nonce": "0xe2e101f95c57d3dd80451129f906c94c9ff364e929c6d77cac7c98c5c6ce4279",
    "signature": "0x12d2e0efcb56df565a739f2ecc21cd7211aa0bbc418c5351ece958cadde4db2d177fe4fb827a63df8b520c9794cb82f817dd24ba336887fd91399d70ddacb1a81c",
    "signer": "0x672e9a41a6b972AB2eD6BEB1D4a6e4F09dA4C9F5",
    "userId": "302680854"
  }
}