{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb8bc81a111d855a29a44bd2cdfe48332ec38be95fff581abecdf09d65a8cfc2d",
    "signature": "0x107b7d13d5e7ea036546155189c870c173902030de3bbbe15e52f82cc982a08c5efe147f0dd7933ae0fc4666686a694e7aff28038bc9e4ea80292f269ba739631c",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}