{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "629530515",
    "entityType": "User",
    "nonce": "0x0801ef2c757d523bc3a871f671a707f7053cfb1ba2c30c16ef7ccc5dbb301214",
    "signature": "0x845800b0b6342995e585513b5e8b1d50e1e2bf0a78d780014c9d0580bc3cb2c12aa8dd3494a5ab2fcb3adea704f0ad927a0917c8d180dc21bc2af77490cdd5881b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}