{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0x049ac1eb96dd5499e44e2f5628a40ae0ef2cbe9833b5b181b8d66f3f513d5e68",
    "signature": "0x648662998f1277f4e3e482cb54c4960f6c10d9d54ec39ecc8ad181f400f59f6c1db6bd7386e11cbaa9ee206652fef4cff800c1b83fec298ae4d8f46ccf9ea6f51c",
    "signer": "0x3Ec98fFA47eF7773803b73964753B99Ae2D50f41",
    "userId": "545926315"
  }
}