{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2617",
    "entityType": "User",
    "nonce": "0x92f57c18ad8e0acb2af3b0042de034197cfce6cd96c1e74fea1db6a527c4718f",
    "signature": "0x59c778123d054648d2ac02afa120da4a0da23d84057347fd891a5ee481eb9ca3484382548d12eecd0b35561282d3ced65975be14067982c098f23e257058a4d51c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}