{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954117045",
    "entityType": "User",
    "nonce": "0x3ce3fa6f90d7d170cb33ba8cc3508b3788faa4af8885ca8b1bc0982a1e6f5e20",
    "signature": "0x5c1932acb0fccf07bc87b10e1e6d2f52eea5d06acc0e9e854ba685e5603b9bd573cce123493631153f59607c0085a021d5ce2b5eb024240bda5526abc67913bf1b",
    "signer": "0x6440Dd7ce5eE2e610F909B08098D39f89250637f",
    "userId": "503764788"
  }
}