{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x1c297d1435db75fc9ade521d9497737ff6d86b7ac6538eb36948ab367922fd82",
    "signature": "0xfc55dc90f5b6b268697958a0b8ba0e11ed3f4fed31ce51197ec1b573c7fa9bfb0fb9d320dc0eb74baee05b3952dbf00ab4dbf92a1331a194c207abd683d0c2a61b",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}