{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4909",
    "entityType": "User",
    "nonce": "0x0a6e29c4a014b871cada9936f0c71b410d54c6afdaa810f0351ab2546fdffac8",
    "signature": "0x83294441dffc002b25795faef2048cdb3d32ec813fb273dd8581f59eee1799434f41d6d4f0436409278b15db236ea2250b78b28409916a1cb3d0df53f41512021b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}