{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1462978",
    "entityType": "User",
    "nonce": "0x1047342aa2f24108e90a08c23982a8c019a237b2e5311745c492a99c910cd5c2",
    "signature": "0x307763426e2011ca2fa07787d3720a421f3eb7448b99942a722a25eb5ed19c1f2b85763047c5376226a2bdf28bb679979dfb13f111de6e79ea772036e9fff98e1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}