{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa62aad5de6cf67912809eb6bf923380f5e61940f2cfc664d9ed0765bd5596a82",
    "signature": "0x5a616770e315ba788036fcde715e5bb1880d604d02cbf4833082c02143ab6ba47d06f9db84464c0690bd1c14af628813e0291e615b674dcfd3c51bdc27dc926d1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}