{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "562530159",
    "entityType": "User",
    "nonce": "0x2cba46fe2815e2b05555e33dfa9fe749267ad748174b47046a8d90144d09cc20",
    "signature": "0x472d0c61924a660c0a3c2df88a3b0d72f40cf04a332b9f8314978c952bbb07ca2072cd153d441e24be6b9638131e76cc77f55848314ab4b6af6fd1b4eb04040f1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}