{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0xd0c9060151245c33d120f4d8819b0eb898119ff48e5d385d375a6405251a62d9",
    "signature": "0xea876f61f9824f6b88b0bb1fcb75aa9c07cae5905c2ebd485fec9df2204f38724532b3b4ceeb4f96c6760481c9fd15d79a26f56d0de55907f57dec6eafc459231b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}