{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x88c2a3fe1e7a4e3b54324d979ab40635b644c1e11514b7c73267f8a314d206c0",
    "signature": "0xeb57062f6a76574733c7404918f95a1c87d208fd5d7c0cd70daec6006c26f6372ee14fa08cfe27eba638b34656bceac6ca507d7fc4e2ce57dae9d5c37d5426121c",
    "signer": "0xEcaFB903ca0Ad57786358d560482a5c5Ec371b56",
    "userId": "106285134"
  }
}