{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4c11f2caff3b49278535c6558e5b61a1b653ce3a09d6aaf23b51c8a3abd52a9b",
    "signature": "0xf3d5a3f0d7e5f8efb654809b44239f8bcda451082539b605d3be7998884b671b5959ef49d72f2e9d90ad8f96faf407165e837de164aabb26968814ea51841b401b",
    "signer": "0xA7259EB855a783771055Af9c4EBE8985D28bD4Fb",
    "userId": "568068817"
  }
}