{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189172",
    "entityType": "User",
    "nonce": "0x24fe9f73dbd61e5a0e43148fa7245b68711c8d35e6d4b279f07ce1cb214ea7f0",
    "signature": "0x5b2e2d8c7f96cf51477575a57ba39601f50f464fad39ba75041d863c5775a4e11aff080cfcea26e9074a70be85d4a32535af626b460f69990ba32aff2321ea4b1b",
    "signer": "0x65EB59bb6C92a37Ff6b3c51d34c0aD3607F751cb",
    "userId": "305838"
  }
}