{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102143",
    "entityType": "User",
    "nonce": "0x517abfda67acb6ef11b3f924911100c6e72ef0797de222d037dd6c75eb67aa40",
    "signature": "0x74ed238cbf01a4603a711e3bf85831d83d2dc01380cc4775a33ee942ad956ed9738a728f804f36a91852667d80492f67453badb63290bdcfb8bc03d254df60e11c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}