{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48952",
    "entityType": "User",
    "nonce": "0x51a77c4e01af4b54753d8f1af139717b0d8aa0bcacbc174157d4e907289af31b",
    "signature": "0xd64b671beff311a3f59a17c886b559af43d709f9fd264e76b7516af6b7e0bd4f23a7a3500f161eded2e4126d65c174e12f135a1c2b18bee9dc7c910e6ef285331b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}