{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "779855",
    "entityType": "User",
    "nonce": "0x1e5e7c48aba2b236cdd5466c571234a6a5e135b91c27e04f62ccbb79c0742530",
    "signature": "0x7110a6b9ec466af8d467360e770d18ac393ce2c77f8ecfaebba90d4bb45b7bae5fb9615d7e4032a40e66ae037ab56280d7456a630a762735bd7593802123468a1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}