{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217405",
    "entityType": "User",
    "nonce": "0x4916787d0396e2022034681febe7d22742bbc857e39e820f4c0791564c46d3c7",
    "signature": "0xc69a63edc3f391a7e2ce6f5beb7c2df8cc72db8b83ae0aa630a9293e99b6bf5f436e87014b504cee5f9d37a8ba238c605f2c75d4e91db0279f45db74e3ab2b6c1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}