{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64800",
    "entityType": "User",
    "nonce": "0xafa86877133a653dad05131b1d5ac26ff54b2bdf3b34ec823486a6063e487cbc",
    "signature": "0x881b21f989bf621c1cadc4a73ef49a89eb21cb1ba9164bf2672ebcb193e13e7362d4ef72417a4ae2513ec388f21e111c8b214aa3a3535f2d948037d88ea7874a1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}