{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x2b5851e61dd4a45a6941527cb0cda044b71787d18649824ab3ba4085e9ea79d7",
    "signature": "0x59b50eb2296eb9f00d3a3abc08257e638476355152c0021a49af13c11a65e601053aeb405d873395b1cfe4a59c6287c97e29b806b12e4322badc33e5e97d8e9f1c",
    "signer": "0x400C9A366Eff098F2ddA26E9da912FC9E092284b",
    "userId": "151067581"
  }
}