{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "364447",
    "entityType": "User",
    "nonce": "0xb34e7c8907a434393a869901f5d025ca7e232b515bf5d0b1c8d47c3a83e8efb3",
    "signature": "0xf3d099d1dbacc5ec16cb21a40e96442e3138b30757cf8be7a4fc765eafc48d3a1403295550b5429a456af48e38a21156c7e3199e1f4d726506480ada0fe1e0ac1b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}