{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "730225845",
    "entityType": "User",
    "nonce": "0x2a9844f918ac0bedca99f9e0ef7d95cf8a09a86be6bd907091ad41063e94dd4e",
    "signature": "0x1ef5704386cdd85663e12c8269ad79616b74a21eacd826bc5e14672b46e959e6758ca75106aa826332424f7ee205ea43e7cb5ba35cb181f26f48aab5522265d61c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}