{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "783144909",
    "entityType": "User",
    "nonce": "0x03ce6a36896a6414387f6f47139f5984c648c3510d423432ed5cce274d87b9e8",
    "signature": "0xf8e80a6a4f19b6526fa3d158f7f754ae779590390ef02772285c78790824050e536ddfcbf10d32d885ecbcee2256b56cabdbeed43d99c2fe07dae5345a1e01eb1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}