{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326584",
    "entityType": "User",
    "nonce": "0x0cb22a76765a7a10b57564d22b0563ef495afe6d2253983e1b98a5ba376d8a97",
    "signature": "0x61f9a3e2afe8d861105aebc918e9355db8bb4465a4570b398eaec81a6134c74b55084acf9293ca008ac83593f9989b004983db9ffdfa53cc8963d8eabe63c5fe1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}