{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7bda45122b34c78dd7d708d40b37c474afaf2b6abc0337f9ae5d31394a5db275",
    "signature": "0xd662a52811c5612d63886a0481dfe4469c0e0899970936194e63c8562fb1c84758110571518fe5c69151c10332c4f4104c2334511ae8ae047dcccc49e46589c01c",
    "signer": "0xA3312C0b98998f02d722cB8f7A2C0c28C4370Ca5",
    "userId": "49582319"
  }
}