{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220844",
    "entityType": "User",
    "nonce": "0xc12a18e297cf6377cc80d41943d29ba3b18821944b3c277721e1fca2dd363595",
    "signature": "0x23c71c3d2053bd5ebe4c1d54f18153cbde630cec6e5dd3b10aa32c458d300e24606c3de33a5c879f641bb1c91c114aa96fffa73a3ed53bee6d83fa6655d4842a1b",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}