{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384929009",
    "entityType": "User",
    "nonce": "0xaab93c884e4d0fbe17e2442dbd534af8dc9db27daa042a0a3efc2592bc6c6ade",
    "signature": "0x812b980c0552c128971686374a0e5e52edc472e461ace8ce071bc0902f40b3ad6440b1c8ffb3a385efc9411040f55a913518c6c3e3f30e8bda065499b75908a61c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}