{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863286534",
    "entityType": "User",
    "nonce": "0x030f2914196df88debfb63e0fdab7f014472a0696547fb9323e156f5f1a72511",
    "signature": "0x179be75445e6e6df518fd32e8a460d729f6f99653d99129222ec99250752d33a674fd8b063d18a9369361c45edd2c373e54cf393f74c6b4c4fc16c18fc3e062b1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}