{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x898a433073fa4bce5fc89db0f079a1f8803761ab286667a46c11fc1a55cabb79",
    "signature": "0x884996ea3d37291ece7d091b10e00059f233e9d0aa40c86023817e120a2dec3668019ef39695ab2e310ac6ca102eabcf254d9e450fd6d65f7c2eebfb6fa6a14a1c",
    "signer": "0x0F8070Ae2D3c1189931582B602ec64D09564F4A4",
    "userId": "278426619"
  }
}