{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "276357",
    "entityType": "User",
    "nonce": "0x72e23a9956b34025208565584418d45944638195ccb725426da21ede9efaea7e",
    "signature": "0xdec9eb32f137d887648a1839008eff908d055bd7b6b8bb9f948143663c37f2567afcc8cb91e01cc21334c10f4b3a7a27d24f5fdfca524da84a25019498bf0fb41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}