{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "378244521",
    "entityType": "User",
    "nonce": "0x6cfca17bb7dd8f57ec8fbf2829167a2cf3a1e32c09e2d5ae3484cbe1aa010688",
    "signature": "0xabc9a348517322915d8fdec958e220be3eef9d0499b51dd528fc8cd7c8a259011fcc7c8541dacb836a1b1cac898521dd3ffc4e4d89654f1abdf3faa25d0c4c3e1c",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}