{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xceca6390cf99f80349050159d4ac504817eb2e5f491b7422777eb417306d7848",
    "signature": "0x7be2d2bed4d3a704644b17df16766e3772b9ec3cbae458a5a02620bf8cf9e0a2557c17b54d1eac57c6ad47870f56915f2e14264ad338101e14551411e76731d61b",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}