{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48853",
    "entityType": "User",
    "nonce": "0xd1bf3b8fef0d5d3db2e500ab993ab7da80c4e961123abad7fd707e477e9bdd11",
    "signature": "0x959d2cc79f47ef73af97630e3c048519877d54f38e6fba56fd17bff69246b2bd084d3213e92b22ea69a256c1cf96eb64825f66c82493ab7052a9de6ed65c80e11c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}