{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x13f0e3233df8873309a045f2a8dec8f70a4c9733cf5ba9708685728df7ec661c",
    "signature": "0x45f1c940539d5cbede070075ec6cb213c8dd25f707ad440985475046a050d1cc771b32302883b68b441f347e5e98e043730d3f9841efd39234351cc07f2089951c",
    "signer": "0x4361CD3BDe7cD66058e910567f406c95990d0337",
    "userId": "652046817"
  }
}