{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709077025",
    "entityType": "User",
    "nonce": "0xc20323399617be3e51dea38b86b539bd08d73b304c8cf7efd22c80f72ac08e0b",
    "signature": "0x9ddd02da960634e3d9dcbf947a98ad8555f059a84d85037d880531e5d1ce95e61810b0ed34766caea4939b4200fce9d12c7af9fb2b54cec5189aa729579315f81b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}