{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281470566",
    "entityType": "User",
    "nonce": "0xc41bf50a2a2e77c2fc09b0adad65de827d30c64df579f77163872a143872c259",
    "signature": "0xb21a3bee5df40c377f505d3d243598e42eef8662fd600d190973e380bb8caf4d5713b4ddb92e14be32c182d2155e62c92b27fd89f77027cce39ad527c068267b1c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}