{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb1b173173f8a7be9d4e59635663bf81c29ff5e472b082b59d968b0c1c40adc79",
    "signature": "0x469f2816967879d66fa41000291acbd5e17ff641a9d850bcb45e70690b2592fc5a480c5efd41288d7f1e932f515e3244632ac7fce1bba1439358593a69a3247c1c",
    "signer": "0xa0e7bc51dB8029B4a47DCb7bC620654B2dA7982E",
    "userId": "760921899"
  }
}