{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x5f513a0e7881fc4c7eecdb699a1ab621f22ff2f3428b51859a9783e39c68006e",
    "signature": "0x33618e2f4ce84dac67309e73a6e30526cbf2733f999831a1717bbe40ddc8f8f444093ae4a9b6484dc157d62f882ac0e90e736794bde60dd3ab2b307bbf7394711c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}