{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x6e11de8d1425d803ff25f0efdf0e633ed7602e6759064046d61eeb1b8338e9fd",
    "signature": "0x16cb03879cf4ede7cf214fd565c3a98e99aa68367a91ab0705e0fff88797b49c2fb17e0737fd5a3d20f2ce3aca91b91945cf932379a334fd30875381dd94e5c51b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}