{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7291c4d32945676175a432850f993f6cb676966ddbd24fb7a5396eb8d274da6",
    "signature": "0xbee5a9cdfa86cd3eec80e494c8e91010d55918b1390ad1d1c665fac6e3244c9f24c52ba31129fca2d6bcae27e2dcb293c9ad767a0cb7a8a133dca29b2c447e441b",
    "signer": "0x69406a3A0DEb4fe60BD4a02F622F3F5C1bDBDc6E",
    "userId": "738670703"
  }
}