{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x5dab6ce561574c64aa702ad6a0cc51c0e27f45cb62a757f9ed2859d83da28259",
    "signature": "0x2eda173b4fde028ea95fd7b9b04847e82290b715167fcd190f1223e0c87d0fab6588f1ab4dfa5b71ad2aebc7d0eb9abdd08759c4c148f4286b70cf95d40aa11f1b",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}