{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240783916",
    "entityType": "User",
    "nonce": "0xfd8cc3db5ae4c290992987dbca29ec968ec9f01f62862139faa3061b669b474c",
    "signature": "0x1c6d110048df6d80fe3e78a96a546e33369cdf668a9ef9375d06b3bed22063b82d3d4b918615a1b0e14ac57f9e61feede9e605d62746d6972da0a814dee98af81c",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}