{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2dc7d856944a7554644951ba960e09db66f9b6969d2ea7e70d6131fa5ade5f57",
    "signature": "0xc161e8f286b2b1bcdf6ba10b79afb705675fe2c66d7d716add55422ed69c940452a5b667b81ea15bda2e4c0ccb20f96d39d6c5609affe7ffbcbc0347051cf7be1b",
    "signer": "0x12465F46a81eDfE760a7326D21Bd9B2022bc4a8B",
    "userId": "575702759"
  }
}