{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164551",
    "entityType": "User",
    "nonce": "0x5cf068e8a99d82ef33edc767290e6652b99e0badfa828b79e392be66eed3e512",
    "signature": "0x57cc05fc12a94dfc8f3e20a2c6d8e64ebcb540126ad2c5199c3e6486276bfe466713c87b773e0c83f2e5979fbb709e0ecd0145048d9b002fc8ba260e3ba239931b",
    "signer": "0x1D0c500EC847246923045cB0a285242A93723f30",
    "userId": "302385956"
  }
}