{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "368774",
    "entityType": "User",
    "nonce": "0x5435adf666063f21beecf66815351948ed42cc9fc9d0923db1fb49aa4afe66fa",
    "signature": "0x1d8ab9e1b389b1f2a7433b5785ac8a92e2a1de3e492219e894ac9cbd2706cd8f079f5e8baeec7c7486408a790e7fda62e8e597eca49c43ec47ab80eb7d96babf1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}