{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2989",
    "entityType": "User",
    "nonce": "0x45df97453b6a47c2456be2ed4e3dbe6ec21900464044dfec7a416b832338470a",
    "signature": "0xddf4bf39a46d4a8dbb56e4f85fe95c8ab4e8ebedcbda63575fb79f1e8cbc2c4360b9cde20a78160fd622aebfef6d4b241c15b19082c6d34c4188b688430046671b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}