{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5baad9dea6bf975183b6e68230efc4f0ecee622e1411147983d38fb9741fbeef",
    "signature": "0xc1c2ff7d7a2d37355be84de6afcb6e69d822a3b87de69b08828e22e63393c0c129446b22b4a1af0a0857c40edd91c7dcc25da647822d53a5afd3713fdd4558ad1b",
    "signer": "0xA3312C0b98998f02d722cB8f7A2C0c28C4370Ca5",
    "userId": "49582319"
  }
}