{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1844160",
    "entityType": "User",
    "nonce": "0xb40b32cbf93232d6b449750ee1536ef734bd98d4bbd5fbd0be1ca6da71645a42",
    "signature": "0x1488f26592df785d17d73c2c4b7114cc6f9c0899ed44398991142b2478e1ad2a31c1bf44806708addf229d55a615e5ba9a124aacb6deef35364831b26aac07de1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}