{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "119987",
    "entityType": "User",
    "nonce": "0x514641506790300fba0d4b5ccb0a0ebb6d3105034e16c064325bdabc02e99799",
    "signature": "0x514f2109371b38d7f846227f2ea1998c0a88781039c536f5257350a9bdc568c8598b88c1006a989451f99bf3f47109ba183171fb29061b29061489a97a673aa91b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}