{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135771",
    "entityType": "User",
    "nonce": "0x20dcad8ea1edb67dd5face848f0bcc410e03dbaced3a942623fadb1035593b46",
    "signature": "0x556e2d70440dec433b629fe14c1454720a68b139ce815df11059476b5c984c373799b962b2ad42160494e3f0fdab079400c27367fe3a3080a9c3d8f03074f1ea1c",
    "signer": "0x5823e56644991c5f5f29870830175996Edb011c0",
    "userId": "433764837"
  }
}