{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x22565c10900352f500b3842fbb8f33f2b7c2d308af221c62d14863fede60860b",
    "signature": "0x600e54d89b948c667eb998f0616d5deadcc558fc2202eaa2f843b5d454a4039a79099ef9854a77fac1926449ea6cd30b1b1ce1dd6aaa2d236315af8936cb89551b",
    "signer": "0x9AF8719f4a11e09Abb6F3f6772F52398f35BDffb",
    "userId": "237358951"
  }
}