{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0x7a602d872232dfbe82e89c97b4eeed4537dc416b54d6a5a39383c40a264fcd68",
    "signature": "0x09c7ffa3cba249765c5e51cc94e326c56f206421d2a1625c2c53b0a27604dfa210b1a7240ee357314cb4216b5f1f95ef10b80bb02102b53bda696a8087e2ec7f1b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}