{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "597419205",
    "entityType": "User",
    "nonce": "0x7106ec53f78cc567922ec5f189058b02ba42dca5a2642a906fa8d36b797024d8",
    "signature": "0xddc339008347e360e107f0504b4bff167973e6d24b24a5102d7f0a2c8779abdb0e382686c24fd128eea1c9dc2e523e5846f08db9ddbceef70c9cad30329bc99d1b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}