{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16402",
    "entityType": "User",
    "nonce": "0xf5ed208d9eb9ed6683425c25f2c7aec83bc60073aa9d9b92d01a3ee9277ec7ed",
    "signature": "0x9617966c0ba1ec64508c9804e1664655cec1daa7732c2ca36ee599c65bc346407a07168d7c8709bee59316f9440015a65c698627f6f66e345e703dbef994b5d81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}