{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1917560",
    "entityType": "User",
    "nonce": "0x3c02bfac06b2a1d6123fbc0eddf3f2a06c788a06643770255f25c4d1193da19b",
    "signature": "0x86f1df6fe992225351bdfa08f7ae37f0f6a1fad526072c405607041632f3e1b10d27a487c44294f69aad5b12403a1932477b92458bab5d4a293cbda615a433d71b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}