{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0xa08f3d7aa9fe2482c099992deaa0c16c2969e7739a6e5a491873e66c22cba06f",
    "signature": "0x6c09045722c29be9a1b2e1853c55d8102b0380fd0e8f40f9fcda9151999caebb552fb2acbc703395f91c3f7dcdb4507463a22e7517552a7707ed65c9c86b14721c",
    "signer": "0x7b52e6AA15Db4Fc3A84AFF2b12e5B8B128eA8610",
    "userId": "808512351"
  }
}