{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885050",
    "entityType": "User",
    "nonce": "0x5ae36f506cb457df3706ebaa325a53a6ea2d33ac478eeaf5c5fed43ddd3d0b35",
    "signature": "0x71bb440ab0bb8fdf453a4c5d7760b02a893f0fc157144bb2d01242536d3c89c54154d7f71f56e74924db0a5953225c4cd3560c8f9a0a2ffc22735ab833c498af1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}