{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "131390",
    "entityType": "User",
    "nonce": "0x597acb61b9d87fd606b558cf9e08e17aab752469c9e6af88c32e6534e9d16801",
    "signature": "0x34900bb8569c213155aa8929e8444488dd8a1fa1b6fae231310d505fb55b907462fafc4afda222e326838036ee1de2e616f104bb3218fb5624121876332cbbe21c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}