{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951546743",
    "entityType": "User",
    "nonce": "0x4edb0a80e01807d35741bc49659c746bd93fc898b68bef7429198bd32f51a4a9",
    "signature": "0x9140f7e55c26276bd5652607bd451e2f2962840aa9664cc956ebe4e1e82b12a0242db1c1e5e527e7694ad3d36af470e4933d14f11f816a7d2a608f9aefaa80191c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}