{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xed33a4446060d70671d278c5ea4dd0530fe94f5d2dceef557e3eb3ed92e62372",
    "signature": "0xd3a45b3141af34b033175f349526e728709a3286a1ed6ded8958a12cb8b0119510ee45ef9bfa77cc367156eba986460613282605e6a8a9ec6e57a6b5089c2f131b",
    "signer": "0xc26eA8B58Fc9bC4B812DC6e0869c73b1B0b8B900",
    "userId": "746820395"
  }
}