{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42880",
    "entityType": "User",
    "nonce": "0x9043ce5b7c10fa28ec64f7927013f9d3102f47e5a1a6c1d191f99627dfc82270",
    "signature": "0xc7aa86400ad855f8bd2df15b628d77bf3431f5db8a02c785a2b5a38a0150a7f020fe59271b79320dcae1e3a2259bcccb3489506e67d769f625301f35bf33a6be1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}