{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x663585efff6b5dbe848f3d2d707ebd76af521f775ed7d5dac58fa9f8900d80f2",
    "signature": "0xc5fad3b8b45a0b072b89e314f1a0fa888a7bba8877ddade6e6c3934d4c9051e7662200058a57fad25e0a8bc556fa826144ca6ac6972f052c7a5b232722362c001b",
    "signer": "0xcE745408Bb1776aF7F773a6bdb889bECF5535929",
    "userId": "155035491"
  }
}