{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0x05f0296608afcd0ea12d349c87c11ac2ab4f1e625076cde0dfc82516cd341ab3",
    "signature": "0xa1073288e3fc4736e793ba7cf51deebe7e7a8e73751b6cff0530a944451a0c9046b356f233df837592d850f05255050c181fcfe2ec867a0166d0e602482d978d1b",
    "signer": "0x62B225252b0b7b2708Ba325A70401F66d02331A1",
    "userId": "942799090"
  }
}