{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4c0efe07932346247d3ffc50449092ec8e41134a04210cd130f2c89fd06807d7",
    "signature": "0xb9c53354eca2e6cf93dbebc1c48e63f075939b677f9e21a3a2d653f615ffa93902360b0a5b729c8ba48ee5a0dc4c5092b8e456f66afb4ce0e80a70718e1077af1c",
    "signer": "0xac1bbC4a7f3145F59532C9E32928845B71c3FB63",
    "userId": "246884598"
  }
}