{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x7783d70b927e093853af71acd3a19e2b6743cd93b86a9e0b5f4884261e0c733e",
    "signature": "0x4866acd180671cac4d43623859613eee99fccd72c110369f87141bbcd969b68f16e9f44c54dff28cf9ebb2c2762c1272f30d6cb714ebc3073323a747cb244bf61c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}