{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708313645",
    "entityType": "User",
    "nonce": "0xbc24156808f54a13c797bbbffb3376de80bd6028be42a23238ccd49a2c8d53f3",
    "signature": "0x8b1a70648ed8ca3c6712f7e5c2ab4e634d95718839fbb893236619038ab10b5140cecb96f2e452029e47b4f8d157c1e928abf7d6faefba7cca72492a917f15381b",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}