{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53474",
    "entityType": "User",
    "nonce": "0x6f77e80e612c30c2f8c986b2fac751dadc5c9c72e950799937513f22849c3f52",
    "signature": "0xc0bf8dcb6a4423cc90e8ce8c6541aed4c2034bbcf79dc9518b4d56a936867e865246a346fcf02a086aebe8845dc4e159e075a9a5d01eafb1266e3f4ec30fedde1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}