{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987024554",
    "entityType": "User",
    "nonce": "0x4ee822e0fcca6fac7baf2e9babcd897ea32f03bb1da418062625809a03b931ff",
    "signature": "0x89d77edcad8ea99fa05bc062307f45a43ddb6b1f045e6688840fb9183f77e9b85abf8b7a756d46a5d4e3cc4bb62e9cae69953646aa800eb635d9f46f9359dccd1b",
    "signer": "0xd6F1269ac846201d7f6d5574279594D67A06bBb2",
    "userId": "624634439"
  }
}