{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10373",
    "entityType": "User",
    "nonce": "0xfe3ee4cf473777ee65988f6ebadf04d8b9bc7f57ecd61e2fcd96d23ae6f08a13",
    "signature": "0xd5d53b2d557a6d0bfd2f14b0083e72971bd270a8e5e9ec9d8e09eb474e2f1ef47796312ff313071c034724c985c1deceace3ef5a6182def982d728f16cd156fd1b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}