{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0f362dabefbde6836bdd14f31940b03c3525951946ba30e448351ae571301061",
    "signature": "0x09699fea0da3d810d2541de6df507e43ac6cf3c771fe4562431bedd9d516cd0517131f8bf68e8472c492f6e93ce4af61e8b9074e6d9243b00b4714f0274c84dc1b",
    "signer": "0xEEF1ced65C136Bcd432f7E04e0e9b9b6d761ed45",
    "userId": "738410187"
  }
}