{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x9b6258f5c9cd59da41916abb3d197dfb78823b902c1b815368e6a0d6a803b530",
    "signature": "0x207f5cd959053a919c853062c81c9262e7fcc44f10af551a0ded32f79a8519123a911b26f52e1032b9d0974390e4a4d82d68f8b33cfad3eef40ba5f43dd5e9261b",
    "signer": "0xb68FB6A5ae9015De46D9634e946c04517523Fa43",
    "userId": "134619804"
  }
}