{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370395",
    "entityType": "User",
    "nonce": "0x84d696383274e9101a0b9f58a3dbb208cd63c6bb521a52b205bcc6877ae67850",
    "signature": "0x4a91315c0c35ea264d36411c15b23718b6fcc3eb1756c3164e70214f12951a582dba44d45ccdf08ab59fd1afaa35289e527dad3f485e445034fa7504e4f3d4501b",
    "signer": "0x3776E1D82Ebf03656FA9D03C18fd5B58D7Ddd337",
    "userId": "83331354"
  }
}