{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11440",
    "entityType": "User",
    "nonce": "0xf4ea0c148cb026edd217d27ecc3e8126e4874b11423e50e921741f27a341a8bb",
    "signature": "0x00e1e5e4d871bcae9d731303e6f1261dcb817445b604596cbed1905a00f11dfa7002cf73ab10bf6fb8f245fcaf26e70fb4c35d50b928ae091ac09d813f2a81e91b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}