{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "638733607",
    "entityType": "User",
    "nonce": "0xc6b44ec44b211971c82c548ffefc19b927e4ce330a28c2b5ada1b95c83388204",
    "signature": "0x0a4847f3658fd10e86fc313e043b657c25fecf06a54e0cd996274755b7aef4263a2ee90069b719294b8db90513107613fa15f23b6e3c918533007810d00530b81c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}