{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987974477",
    "entityType": "User",
    "nonce": "0x871ac013abdb9e58699e2b481a200a7044c2f04d168951c414df7520505fe277",
    "signature": "0x416b177a7ccebb255c94dc6daa3c0872cf92e9b48882840eb82eb5489ed5242f16766bd886b83afd667af75fe02a8dc78b416b65b64816d83d6a234eeb07eb041c",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}