{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xf69406a82edfdefb160e72e7863022484fb5255726cc5680b4fa3486b79f347b",
    "signature": "0x24df4f9c990adc91eb04ddb91901da92d7f754d0f3b0d9d70d184c3923f9e691657136f04d520b87bdc6aa15474fa2f090e0b2d1ef5ee1ddefa8513fbd9585eb1c",
    "signer": "0xb1B6758E0F16Ff306fc9054B49d73834a7610ACB",
    "userId": "912925478"
  }
}