{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x129ff4d82a7c0aed300971944428f7645d2394ab050d7a496d8c0f104297ab3c",
    "signature": "0x59320ee3f90e1cfba0dbc602260a1c85954caf8e6c445f01b0eaba0b26c5f80646fccccda386448625aca1ad3469c45afdcd28a1a02ab17e1dac6ed01ced72961b",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}