{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174543",
    "entityType": "User",
    "nonce": "0x1cf18b6f8f5f09be94230c158ca8fc69080a706df02dbb7cf343c6897339ea28",
    "signature": "0x2ccfdf5ba9f5a0d010aead007d942e90187edf5aeeb526739bd5ae75bbd7282c5f799a88d0a86e100912381296a80849a2f4e30e3b87ad3e7725b9ed0218c9e91c",
    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}