{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288244",
    "entityType": "User",
    "nonce": "0x00abb0f1193be8be7004628a3acf746faf981692e530e17bc88bebda8f4c3298",
    "signature": "0x352cf7c3a760846329845036b29e2b90907b1c2c3f18785bfb86ee09cd13a6321238a10b17a71c8835b56c5063a647df6bed4b8b39a1caf9e658b6406133dd591b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}