{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "917339310",
    "entityType": "User",
    "nonce": "0xd633b05bc8efc1cbb9d0baad18387bbb23b932a65c2a2d5d40869be6b226f1ef",
    "signature": "0x3b6eb3535e3b517084c9403d9b44e9b8195ee86787a061a4b78b73d612b35ad30b907d6dbd3576e1a02a16a0f5f12c0d8ff902a7e1cefcc1a9df4f111dff08701b",
    "signer": "0x4b8C8Bf7753B25e756D56124590F13eE023632B2",
    "userId": "138349429"
  }
}