{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "94221",
    "entityType": "User",
    "nonce": "0x9a26c500c64f255ed718013ba84bdbad0310af8d0c745bab50d3bc92099e1b5e",
    "signature": "0xf78738c60e076ecbe462a309bb96a93bcf25bfcbcd7c88d3d42c5a8474b9f6860629d7b042d181fb0d0372d056c99ce5fa525f800f1ec86101d19cecfc169f5a1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}