{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125066",
    "entityType": "User",
    "nonce": "0x87cc08ca082c0c2a72c34735fa4a7ccd17cb8b8251e4ea0e0e68c95335d9cf4f",
    "signature": "0xf700393b95ececb131585f7340cdd150815dfb5182c3d6f7de153cdc1bf8987d45cc5fe363d70e3fe3628bb885598a28cd5921cf3a5146d0273b75da4e9e78951b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}