{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4cc5161c131bd5c3132400ebad13ee11371c502105a4924f1cf28de49b64c83d",
    "signature": "0x800b6b1d2d996589c49b00df653d365b920b871e992faf0cc47eb77bd06e8eb24c551027aa08159f2c3d28d72021d81a570b9838e3cdd3acaff598f7983ab4e51c",
    "signer": "0xf4A636aa9e0132E64ad431686f8E6Cec7E4693F1",
    "userId": "581150838"
  }
}