{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x76aa3cdc691e63f28338186caa37bc8c7482c2a7bb62cdde78c598acebe82fd4",
    "signature": "0xfb913bcbd63c7c58bdae76446b22a8615d3c969366537c50380ab21b768796ea7855c0b0ce4d63169644dd30322c97c5058b4c0b3fd353684d87175f2caabccf1b",
    "signer": "0x030F578721CEB2d0f9540AA435198EDFF9B77D69",
    "userId": "781474307"
  }
}