{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4960",
    "entityType": "User",
    "nonce": "0xa757e6c4995cabf879744a735c2ec1bd426cec9776c0d0d9a1cfc306d997cf0c",
    "signature": "0x6e444b8da6b2e94fec1ca9f44fcbbaa31146845da9ef82bd50517648ce912128619793064abcca98e356c70d354e6c7e3e78c465301448f3c86b1ed1cf9d94061c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}