{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77313",
    "entityType": "User",
    "nonce": "0x6ce5af66be221456e850cdc8918b66ed2ac2e37a815c495470427f6429f5f912",
    "signature": "0x4d4178ddd5f6cc4457c06df28ee11a436e257b664a4037edf6c7581e0875c6e0517a017144ecc57c64ce91e6f5a11b21a9ebb240784944cba80b83487df08d2b1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}