{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389234186",
    "entityType": "User",
    "nonce": "0xd140c66588e8e4cc50679c08d00983cc1f9149efeabfeaea06ab3a34939afd7a",
    "signature": "0x192c002deffe729d072794c7cc825b2c688df8da584303f2d529e130e421da894da0eb82fbe1f3049cf9345d537ca6bd91607ae445d117c3da54a4d029a31e031c",
    "signer": "0x25e1dfee0D681BE7Cc3edbBa57650eeadD7B075F",
    "userId": "486382568"
  }
}