{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "844754103",
    "entityType": "User",
    "nonce": "0x2ff7ac69ac4bf160d6bce23a7af0967504ec4667ac6140278a4a833b13904426",
    "signature": "0x43bb4a02276cba00a603a51242cb00b4c7d2ac63277943459bbe76956f5ce55925fda9aa74cf5d54cc237b453aa6e321b57607955f5f734b4297a9b70d9626ab1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}