{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x76b61c3190d6dcc6939c0ad2aca5a50e77863afec4134a50ce8bcbadcd98e0f9",
    "signature": "0x26b9e54c16dc77a2d4458f719a05f5c466dd0384d0c0c99aa01ee94cccc7bc1c683dc777d75edb29efe65864d49bf1af5cd6c2c2696a3a5cf4eae13136788e6c1b",
    "signer": "0xa361a0514021Ef38D01F247402b0757B5213cc18",
    "userId": "455351007"
  }
}