{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x3b27ac33279b879ac8a761a7aab73ce3d1da563acd4532f9dc89ca107436d44d",
    "signature": "0x0d86bed9c781c39406a8163f4954ec61d150d447b3ef1c26d8b2bc2f41b6235c39e276873d85077755945691592c5c624077c9ca464236d2338420ce6262e4731b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}