{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271997",
    "entityType": "User",
    "nonce": "0x0d61d079acd2cd5bc5fa92a66b671e9b3768aed06a0a615ca98a3756f2f3515f",
    "signature": "0x9c4570b08be5406f4246032bb0c149a2141da5878bfc1ed0d001b7b2d4d0855726bfced6194b1467d7c04cf7a37a91cbd76c1489c25f6965162d0d9dbe74db301c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}