{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x22a2efdf4d14b9115906aef5a40a4c972ee4a909c668f69e9386ce3c2f55e67b",
    "signature": "0x14e46f43418393d2237d9f3a952736e0f38e23e08277e6c03e96c8eb2107b23071f53104f6a2be328c84debcbd05ec1dd60064a0cbac6c89853489708c8b3e8d1c",
    "signer": "0x91a119c9b069C0302D53f8c9908e1A32B6304853",
    "userId": "111122236"
  }
}