{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8972ad7725b4be9d16f4d9f46597d7f2847e4287fcd53e5c2dcd2f870279f19",
    "signature": "0x41b86f14b9891615485733d1f5e1f79b9d409158f25cea9e3b39988896324dfb137dfa55bd237f6adcdb69299e912ce0e459d35607b37fee00b9bc48d779f9051c",
    "signer": "0x606b56d2c855D80E11C28880Ce642ee013323eAe",
    "userId": "160980228"
  }
}